A Rigid Rectangular Loop,which Measures 0

question 38

Multiple Choice

A rigid rectangular loop,which measures 0.30 m by 0.40 m,carries a current of 5.5 A,as shown in the figure.A uniform external magnetic field of magnitude 2.9 T in the negative x direction is present.Segment CD is in the xz-plane and forms a 35° angle with the z-axis,as shown.Find the magnitude of the external torque needed to keep the loop in static equilibrium.

• A) 1.1 N • m
• B) 0.73 N • m
• C) 1.3 N • m
• D) 1.4 N • m
• E) 1.6 N • m

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Definitions:

MC = MR

A condition where a firm's marginal cost (MC) of producing an additional unit is equal to its marginal revenue (MR) from selling that unit, often used to determine the profit-maximizing level of production.

Costs Of Production

Costs of production refer to the total expenses incurred in the manufacturing of a product, including raw materials, labor, and overhead.

Marginal Revenue

The additional income received from selling one more unit of a product or service.

Marginal Cost

The expenditure required to create another single unit of a good or service.